Embedded active memory object database design method

Abstract

The invention discloses an embedded active memory object database design method, which is characterized in that: (1) a mode for describing an object model realizes seamless combination of object data and relational data in the process of mapping the object model and a relational model, avoids the calculation process for the object-relation mapping process and improves the access speed for a memory object database by directly mapping multi-dimensional object relationships into three special two-dimensional tables; (2) a data organization mode of taking an object attribute column as a basic structure optimizes the database reading speed; (3) a quick loading mechanism shortens system starting time and improves system availability; and (4) an active object information notification mode changes the traditional strong coupling design of 'data structure + algorithm', and simplifies a function application developing step.

Description

technical field [0001] The invention relates to a model design method of an active memory object database, in particular to a model generation and access technology of an embedded active memory object database of an intelligent measurement and control device. The utility model belongs to the technical field of electric power automation. Background technique [0002] In the development process of intelligent devices such as protection and measurement of power system automation, the same type of hardware platform is generally used, and different embedded software is configured to meet the different functional requirements of protection and measurement. In the early days, due to the limited hardware resources of smart devices, their embedded software was generally customized for specific functional applications. The software internally adopted the traditional "data structure + functional algorithm" model. This model is suitable for limited hardware resources, but in Today, wit...

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Problems solved by technology

[0004] In order to solve the problems encountered in the existing embedded software development process, the purpose of the present invention is to provide an embedded active memory object database, so that manufacturers no longer rely on the traditional "data structure + function" when developing smart devices with different functions Algorithm” mode, but based on a unified memory database, the memory database should be able to meet the modeling requirements of IEC61850 and other object description-based power specifications, and the modeling process will not lead to the reconstruction of the corresponding functional application software, the object model When adding or subtracting attributes, applications that have nothing to do with the increase or decrease of attributes will not be affected, ensuring the relative stability of embedded software and effectively reducing the cost of developing and maintaining smart devices for manufacturers

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